All categories

3 years ago

Solve for X if MN =81 A)9 B)10 C)11 D)12

Mathematics

1 answer:

ValentinkaMS [17]3 years ago

6 0

Answer:

Step-by-step explanation:

You can see, MN consists of the three lines in the picture. So you just need to sum them tougher in an equation with it's original value 81.

5 + 3x - 8 + 4x = 81

7x = 81 + 3

7x = 84 / : 7

x = 12

You might be interested in

Find the inverse of function f. f(x)=9x+7 A. B. C. D.

9966 [12]

Answer:

y = (x-7)/9

Step-by-step explanation:

y = 9x + 7

x = 9y + 7

x - 7 = 9y

y = (x-7)/9

8 0

3 years ago

Mr. Zelman wants to give 50% of his comic book collection to his nephew Alex. If Mr. Zelman has 800 comic books, then how many w

BARSIC [14]

Mr. Zelman gave 400 books to his nephew

<em><u>Solution:</u></em>

Given that, Mr. Zelman wants to give 50% of his comic book collection to his nephew Alex

Mr. Zelman has 800 comic books

Number of books with Zelman = 800

Mr. Zelman wants to give 50% of books to Alex

Number of books given to nephew = 50 % of books of Zelman

Therefore, we have to find 50 % of 800

$\rightarrow 50 \% \text{ of } 800$

$\rightarrow 50 \% \times 800\\\\\rightarrow \frac{50}{100} \times 800 = 400$

Thus he gave 400 books to his nephew

4 0

3 years ago

How do I subtract fractions? Please explain step by step to get marked!

Mashutka [201]

Answer:

Explained below :)

(I tried my best, sorry if it doesn't make sense.)

Step-by-step explanation:

Example: 1/4 - 1/8= ?

1: Find the common denominator (bottom number)

2: If the common denominator is 8 then you multiply 1/4 by 2/2 to get the denominator of 8. If you needed then you can multiply the other fraction to get the same denominator.

3: Once you get multiply that then you get 2/8 -1/8.

4: Subtract the numerator (top number) 1

5: Keep the numerator (8)

6: Your answer would be 1/8

7 0

2 years ago

The first term of an arithmetic sequence is 23 and the 37th term of the sequence is -49. What is the common difference of the se

Leona [35]

zorryyyyyyyyyyyyyyyyyttt

zorryyyyyyyyyyyyyyn es jdjdjejf7 j e y dn e jsnjeufy2jhqu1223626339u3 36xtjwjwkwjwn e jsj2k2ksi2u28jwh2jsjwjwjjwuhgwbajqk8wj37527kwbvwb2bwb2uu2j3j3j2u2uuw73jwjwjwjw. kwk

3 0

3 years ago

<img src="https://tex.z-dn.net/?f=f%20%3D%28x%29%20%3D%20%5Cfrac%7Bx%7D%7B4%7D%20" id="TexFormula1" title="f =(x) = \frac{x}{4}

Inga [223]

Answer:

g(x) = $\frac{x+3}{x-3}$